Work-bench.



PATENTED JNB 27, 1905.

G. F. WALKER.

WORK BENCH.

APPLIGATION FILED JUNE15. 1904.

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UNTTE STATES Patented June 27', 1905.

PATENT @E EicE.,

WORK-BENCH.

SPECFICATION forming part of Letters Patent No. 793,113, dated June 27', 1905.

Application ilefl June 15.1904. Serial No. 212,690.

Be it known that l, (Haenen F. lVALKnn, a citizen of the United States, residing' littaiv ning', in the count)v of Armstrong' and Stale of lzennsylvania, have invented new and useful improvements in llroi'k-l'lenches, of which the following' is a specilication.

'Vlhis invention is an apparatus for lifting' a bench, bed-plate, bar, or the like and is capable of application to a varietyv of uses, such as for lifting' the bed-plates of leather pressingl or rolling' machines, lifting' presses containing a seriesof punches to punch holes in wood, metal, or leather. or for mortising', stamping', and die-pressing'.

Referring` to the accompanying' drawing's, Fig'ure l is a front elevation showing' the application of the invention to a leather rolling' or pressing' machine. Fig'. Zis a frontelevation showing' its application to a punching'- machine. Fig'. 8 is a side elevation.

Referring' specifically to the drawings, similar numerals indicate the same parts throughout the several views except where the dil'l'erent nature of the machines require the indication of parts specitic thereto.

ln the drawings, ti indicates a sill on which are mounted two posts T, these posts being` crmnected at the top by an iron plate b. The plate is mortised to receive tenons El, which tenons project above the top of the plate, forming' guides for a bar l0, which carries the punches or cutters in punclling-machines, as in Fig'. 2. 'lhis bar has mortises ll, in which the projecting' tenons 9 of the post lit, and the tenons serve as g'uides for the vertical movement of the bar. Such movement is ellected by an arrangement of compound levers, comprising' a treadle 1Q, which is pivoted at 13 between ears on a wooden sill l and is connected b v a rod l5 to the middle of theerossbar le, the ends of which are connected bv rods lT to levers lo, which are let throug'h niortises in the post T and vfulerumed on pivots at 19. (lonnected to the other ends of these levers by pivots at 2O are struts 2l, the lower ends of which are forked over the lef vers. '.lhese struts work through openings (indicated at 22) in the plate S, and their upper ends contact with the under side of the bar lll.

ll'hen the treadle is depressed, the bar l() is lifted, as indicated in Fig'. 3, and its movement may be utilized for any purpose desired or neee"sar v.

ln Fig'. l the device is illustrated as applied to lifting' the bed-plate of a leather pressing' or forming' machine. Said bed-plate is indicated at lll and rests on a table 2l above openings 25, throug'h which the struts 2l work. The pressing' or forming' wheel or roller is indicated at 2b, driven and supported by suitable mechanism. rl`o appl)Y the roller to the leather, the latter is placed on the bed-plate, and by depression of the treadle the latter is lifted. forcing' the leather to contact with the roller for treatment in the usual manner.

ln the punclling-machine illustrated in Fig'. 2 the invention is disposed under a punching'- table, (indicated at 3th) the bar lll being' provided with a series of punches Ell. lVhen the bar lo is lowered, a sheet of leather, wood, tin, or the like may be inserted between the punches and the under side of the table. and pressure applied to the treadle will cause the bar ll) to lift and punch holes in such material. l)ies` ehisels, cutters, or the like ma)Y be substituted for the punches shown, and other utilizations of the invention will readily occur to thoseskilled in the art. 'l`he weig'ht ofthe parts lifted will asa rule be sullicient to return the levers and treadle to their original position. lf not, springs, as at 3L, mayv be employed for such purpose.

ll'rhat l claim as new, and desire to secure by Letters lratent, is

'llhe combinal ion of posts having' projecting' tenons at their upper ends, a plate connecting' the posts and having' mortises through which the tenons project above the plate to form g'uides and also having' apertures beside said tenons, a verticallvmovable bar, for tools or material, extending' across the tops of the posts above the plate aud having' mortises in which said tenons lit to g'uide the movement,- of the bar, operating-levers fulcrumed on the posts, and struts extending' between the levers and the bar, throug'h said apertures.

In testimonyv whereof l havesig'nml in v name to this specilication in the presence of two subscribing' witnesses.

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ll'itncsses:

J. S. llosuxnuuonu, Yl). A. Shauna. 

